Original Publication Date: 1989-May-01
Included in the Prior Art Database: 2005-Jan-29
Filtering air through activated carbon removes minute traces of impurities which may be present. In many manufacturing processes, chemical materials are sensitive to the presence of minute amounts of ingredients which are present as contaminants in the air. Filtration through activated charcoal protects them from the harmful effects of such contamination. Furthermore, sensitive compositions may be stored for much longer periods when they are stored in air which has been filtered with activated carbon. Such filtration is particularly valuable to preserve the activity of compositions which depend upon catalytic activity of a component. In many cases the catalytic activity is destroyed by contact with an environmental contaminant, but filtration of the air through activated carbon will preserve the catalytic activity.